chore(docs): DSPX-1442 update Java & TS to match Go-lang

[b-long]

The rendered page for Creating TDF's , with the heading "Encrypting / Decrypting zTDF" is here:

• https://opentdf.io/sdks/tdf

You'll notice, on that page, that the Go example is much more approachable and provides friendly output to the user about the status of work being performed.

This PR is meant to update the Java & TypeScript code sample to be just as approachable.

[gemini-code-assist]

Summary of Changes

Hello @b-long, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on updating the Java code sample within the encryption_ztdf.mdx documentation file. The primary intent is to modernize the usage of the Java SDK for TDF encryption and decryption, bringing it into closer alignment with the patterns and best practices observed in the Go-lang examples. The changes streamline the API interactions, enhance the clarity of the demonstration, and improve the overall robustness of the provided code snippet.

Highlights

• Java SDK Modernization: The Java code sample has been updated to utilize a more modern and simplified SDK API for encryption and decryption operations, specifically for createTDF and loadTDF methods.
• Improved Example Flow: The example now demonstrates a complete encrypt-then-decrypt cycle within the same main method, leveraging in-memory streams for initial encryption and temporary files for subsequent decryption, providing a clearer and more robust demonstration.
• Enhanced Readability and Debugging: Informative System.out.println statements have been added throughout the Java code to provide better logging and clarity on the execution flow. Unused imports and complex exception declarations were also removed to simplify the code.
• Configuration Alignment: The platformEndpoint now explicitly includes the http:// scheme, and the kasInfo.URL is dynamically constructed based on this endpoint, improving consistency and adaptability.

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[gemini-code-assist]

Code Review

This pull request updates the Java code sample for TDF encryption to be more comprehensive, including both encryption and decryption steps. The review identifies several areas for improvement in the new Java code, focusing on adherence to Java conventions, code clarity, and robust resource management.

[jp-ayyappan]

@b-long Can you please review the code review from the bot and make changes as needed?

[jentfoo]

commits need to be cherry-picked due to main squash

[jp-ayyappan]

🚀

OBE